Now adding CPPFLAGS to CXXFLAGS to allow extra preprocessor flags to be given when doing make

CONTRIBUTORS

@@ -2496,6 +2496,8 @@ Tobias Grimm <tobias.grimm@e-tobi.net>
  for adding optional verbose output to the libsi Makefile
  for making the call to pkg_config configurable via the PKG_CONFIG macro
  for fixing a typo in svdrp.c
+ for suggesting to add CPPFLAGS to CXXFLAGS to allow extra preprocessor flags to be
+ given when doing make
 
 Helge Lenz <h.lenz@gmx.de>
  for reporting a bug in setting the 'Delta' parameter when calling the shutdown

HISTORY

@@ -9453,7 +9453,7 @@ Video Disk Recorder Revision History
   The version numbers (both VDRVERSNUM and APIVERSNUM) have been bumped to 2.4.2, so
   that plugins can detect the presence of the new cControl::Control().
 
-2020-06-25: Version 2.4.3
+2020-06-27: Version 2.4.3
 
 - Added a missing '-D' to the 'plugins' target of the Makefile (thanks to Johann
   Friedrichs).
@@ -9488,3 +9488,5 @@ Video Disk Recorder Revision History
 - Added a comment about the semantics of cTimeMs::Set().
 - Adjusted device selection in GetDeviceForTransponder() to that in GetDevice() (thanks
   to Helmut Binder).
+- Now adding CPPFLAGS to CXXFLAGS to allow extra preprocessor flags to be given when
+  doing make (suggested by Tobisa Grimm).

Makefile

@@ -4,7 +4,7 @@
 # See the main source file 'vdr.c' for copyright information and
 # how to reach the author.
 #
-# $Id: Makefile 4.9 2020/06/22 15:08:46 kls Exp $
+# $Id: Makefile 4.10 2020/06/27 09:13:04 kls Exp $
 
 .DELETE_ON_ERROR:
 
@@ -17,6 +17,7 @@ CFLAGS   ?= -g -O3 -Wall
 
 CXX      ?= g++
 CXXFLAGS ?= -g -O3 -Wall -Werror=overloaded-virtual -Wno-parentheses
+CXXFLAGS += $(CPPFLAGS)
 
 CDEFINES  = -D_GNU_SOURCE
 CDEFINES += -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE